Vienna Center /vaɪˈɛnə/ is a census-designated place in Vienna Township, Trumbull County, Ohio, in the United States. As of the 2000 census, the CDP population was 994.Vienna Center is part of the Youngstown–Warren–Boardman, OH-PA Metropolitan Statistical Area.Vienna Center is located at 41°14′10″N 80°39′46″W / 41.23611°N 80.66278°W / 41.23611; -80.66278.According to the United States Census Bureau, the CDP has a total area of 4.2 square miles, all land.The ZIP code of its post office is 44473, but under the name of Vienna, rather than Vienna Center.As of the census of 2000, there were 994 people, 371 households, and 278 families residing in the CDP. The population density was 234.7 people per square mile. There were 383 housing units at an average density of 90.4/sq mi. The racial makeup of the CDP was 98.49% White, 0.91% African American, 0.10% Native American, 0.20% Asian, and 0.30% from two or more races. Hispanic or Latino of any race were 0.60% of the population.